There are
1,970 mi
from Champaign, IL to Kennewick, WA
That's the driving distance. It would take 1 day 10 hours to go from Champaign, Illinois to Kennewick, Washington.
The flight distance (direct flight from Champaign, IL to Kennewick, WA) is 1,601.65 mi.
1,970 mi = 1.61 kms